docs: def get_forwarding_information_base(self, filter=''):
          """
          Gets the forwarding information base data for a logical interconnect. A maximum of 100 entries is returned.
          Optional filtering criteria might be specified.
  
          Args:
              filter (list or str):
                  Filtering criteria may be specified using supported attributes: interconnectUri, macAddress,
                  internalVlan, externalVlan, and supported relation = (Equals). macAddress is 12 hexadecimal digits with
                  a colon between each pair of digits (upper case or lower case).
                  The default is no filter; all resources are returned.
  
          Returns:
              list: A set of interconnect MAC address entries.
          """
          uri = "{}{}".format(self.data["uri"], self.FORWARDING_INFORMATION_PATH)
          return self._helper.get_collection(uri, filter=filter)